How about getting managers to bid on staff salaries instead? 19k? 22k? 25k?
Much like RL, you decide how much you want to pay him and he'll accept the highest offer.
Not likely to happen: what this means is that if you strike gold on transfer day, you will be saving money each week for what, 10 seasons? Nah.
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."